Once expenses are approved, they sit in your expense log as actuals. Actuals are the amounts already spent on the project. They feed budget vs actuals reports, forecasts, and billing.
Budget vs actuals is the comparison between your project budget (the plan) and your actuals (what has happened so far). When that picture is clear, it is easier to explain where the budget went and to agree on next steps.
The next step is to get familiar with the main types of project expenses you will run into in everyday project work.

